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trig
find the exact solutions 2cos^2x+3sinx=0 the way it stands, that is a "nasty" question. Are you sure the second term isn't 2sin(2x) ? no, its as i wrote it. then it's got me stymied, I must be missing something rather obvious,
asked by Devon on April 16, 2007 
Maths
Solve for x (exact solutions): sin x  sin 3x + sin 5x = 0 ¦Ð ¡Ü x ¡Ü ¦Ð  Thankyou. I tried find the solutions on my graphics calculator but however, the question is to find the EXACT solution(s) for the
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Trig hep, please? Thank you!
1. Find the exact value of sin(195(degrees)) 2. If cot2(delta)=5/12 with 0(
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trig
how can i find all the exact solutions to the equation : 2cos^2x + 3sinx = 3 the solutions have to be between [0,2pi)
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1. Find the value of Sin^1(1/2) a. 30 degrees b. 30 degrees c. 150 degrees d. 330 degrees 2. Find the exact value of cos(420 degrees) a. 1/2 b. 1/2 c. sqrt of 3/2 d. sqrt of 3/2 3. p(9/41, 40/41) is located on the unit
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Trig Equation
Solve for x (exact solutions): sin x  sin 3x + sin 5x = 0 ¦Ð ¡Ü x ¡Ü 0  Now, using my graphics calculator, I discovered that the following equation has 5 solutions. I have managed to come up with 3 of them but I'm
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pre calculus and trigonometry
already posted these questions but i could not find the post find all solutions from 0 degrees to 360 degrees 1. 4 sin^2x – 1 = 0 2. 2 sin^2x + sin x = 1 3. 2 sin^2x + 7 sin x = 4 4. cos x sin x + sin x = 0 5. 2 sin^2x  1 = 0
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trigonometry
Find all solutions on the interval [0.2pi) A) 3sin(t)=15cos(t)sin(t) I have no clue... b) 8cos^2(t)=32cos(t) All i did was move around the equation to make an quadratic for B. so 8cos^2(t)2cos(t)+3 = 0
asked by Dan on May 7, 2015 
math
1)In triangle ABC, C=60 degrees, a=12, and b=5. Find c. A)109.0 B)10.4 C)11.8 D)15.1 I chose B 2)Which triangle should be solved by beginning with the Law of Cosines? A)A=115 degrees, a=19, b=13 B)A=62 degrees, B=15 degrees, b=10
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trig
find the exact solutions (è in degrees) sin^2è+2cosè=2 change the sin^2 to 1cos^2, then rearrage the equation into quadratic form, use the quadratic equaion.
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